Backend Engineer (Node.js & Express.js) - Full-Time (Remote, India)

Backend Developer (Node.js & Express.js) - Full-Time (Remote, India)Company : Zendr ltd, UK.Location : Remote (India-based candidates only)Experience Required : Minimum 1.5+ yearSalary : To be discussedAbout Zendr : Zendr is a UK-based startup on a mission to transform how businesses manage payments, invoicing, and operations. We’re building the future of business tools. Simple, scalable, and secure. Our vision is to scale across multiple industries while maintaining security, reliability, and top-tier performance in our backend infrastructure.Role Overview : We are looking for a Backend Engineer with expertise in Node.js and Express.js to join our growing team. This is a full-time remote position, specifically for engineers based in India . You will be responsible for designing, developing, and optimising backend systems that power Zendr’s financial infrastructure. If you are passionate about scalable architecture, high-performance APIs, and fintech innovations, we’d love to hear from you!Key Responsibilities : - Design, develop, and maintain robust backend systems using Node.js and Express.js .- Build and optimise RESTful APIs for high-performance transaction processing.- Implement security best practices, including encryption, authentication, and authorization .- Work with databases such as  PostgreSQL to manage financial data efficiently.- Optimize system performance, ensuring low-latency and high availability .- Collaborate with frontend developers, product managers, and other stakeholders to deliver seamless user experiences.- Write clean, maintainable, and well-documented code.- Implement automated testing (unit, integration) and participate in code reviews.- Monitor and troubleshoot issues in production environments.- Stay updated with industry trends, especially in fintech and